---
id: "CVE-2026-119987"
page: "https://infrastack.ai/live/CVE-2026-119987"
kind: "vulnerability"
aliases: ["CVE-2026-119987"]
title: "Windows App Store: untrusted search path lets a local user gain higher privileges"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows 10 21H2", "fixed": ["10.0.19044.7807"], "affected": ">= 10.0.19044.0, < 10.0.19044.7807", "ecosystem": "microsoft"}, {"name": "Windows 10 22H2", "fixed": ["10.0.19045.7807"], "affected": ">= 10.0.19045.0, < 10.0.19045.7807", "ecosystem": "microsoft"}, {"name": "Windows 11 23H2", "fixed": ["10.0.22631.7652"], "affected": ">= 10.0.22631.0, < 10.0.22631.7652", "ecosystem": "microsoft"}, {"name": "Windows 11 24H2", "fixed": ["10.0.26100.9711"], "affected": ">= 10.0.26100.0, < 10.0.26100.9711", "ecosystem": "microsoft"}, {"name": "Windows 11 25H2", "fixed": ["10.0.26200.9711"], "affected": ">= 10.0.26200.0, < 10.0.26200.9711", "ecosystem": "microsoft"}, {"name": "Windows 11 26H1", "fixed": ["10.0.28000.3231"], "affected": ">= 10.0.28000.0, < 10.0.28000.3231", "ecosystem": "microsoft"}, {"name": "Windows 11 26H2", "fixed": ["10.0.26300.9711"], "affected": ">= 10.0.26300.0, < 10.0.26300.9711", "ecosystem": "microsoft"}, {"name": "Windows Server 2022", "fixed": ["10.0.20348.5761"], "affected": ">= 10.0.20348.0, < 10.0.20348.5761", "ecosystem": "microsoft"}, {"name": "Windows Server 2025", "fixed": ["10.0.26100.33650"], "affected": ">= 10.0.26100.0, < 10.0.26100.33650", "ecosystem": "microsoft"}]
ecosystems: []
tags: ["endpoints", "infrastructure", "local-privilege-escalation", "microsoft-store", "windows"]
not_affected_if: ["no-local-untrusted-users", "patched-build"]
published_at: "2026-11-10T19:20:23+00:00"
first_seen_at: "2026-11-10T19:25:06+00:00"
updated_at: "2026-11-10T22:10:12+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119987", "first_seen_at": "2026-11-10T19:25:06+00:00"}, {"source": "analyst", "url": "https://app.opencve.io/cve/CVE-2026-119987", "first_seen_at": "2026-11-10T22:10:12+00:00", "cites": ["https://app.opencve.io/cve/CVE-2026-119987", "https://nvd.nist.gov/vuln/detail/cve-2026-119987"]}]
exploit_sources: []
---

# Windows App Store: untrusted search path lets a local user gain higher privileges

Link for people: https://infrastack.ai/live/CVE-2026-119987 (this .md is for agents)

Microsoft Windows App Store has an untrusted search path flaw that lets an authorized local user elevate their privileges. An attacker who already has a local account can gain higher rights on the machine.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- microsoft:Windows 10 21H2 affected >= 10.0.19044.0, < 10.0.19044.7807 fixed 10.0.19044.7807
- microsoft:Windows 10 22H2 affected >= 10.0.19045.0, < 10.0.19045.7807 fixed 10.0.19045.7807
- microsoft:Windows 11 23H2 affected >= 10.0.22631.0, < 10.0.22631.7652 fixed 10.0.22631.7652
- microsoft:Windows 11 24H2 affected >= 10.0.26100.0, < 10.0.26100.9711 fixed 10.0.26100.9711
- microsoft:Windows 11 25H2 affected >= 10.0.26200.0, < 10.0.26200.9711 fixed 10.0.26200.9711
- microsoft:Windows 11 26H1 affected >= 10.0.28000.0, < 10.0.28000.3231 fixed 10.0.28000.3231
- microsoft:Windows 11 26H2 affected >= 10.0.26300.0, < 10.0.26300.9711 fixed 10.0.26300.9711
- microsoft:Windows Server 2022 affected >= 10.0.20348.0, < 10.0.20348.5761 fixed 10.0.20348.5761
- microsoft:Windows Server 2025 affected >= 10.0.26100.0, < 10.0.26100.33650 fixed 10.0.26100.33650

## How to check

Run winver (or [Environment]::OSVersion / cmd 'ver') and compare the full build number (e.g. 10.0.26100.xxxx) with the fixed build for your Windows version; lower means exposed. Source: Microsoft CNA record via NVD/OpenCVE; confirm KB on the MSRC page.

## Fix

Install the November 2026 Windows cumulative update that brings the build to at least: Win10 21H2 10.0.19044.7807, 22H2 10.0.19045.7807, Win11 23H2 10.0.22631.7652, 24H2 10.0.26100.9711, 25H2 10.0.26200.9711, 26H1 10.0.28000.3231, 26H2 10.0.26300.9711, Server 2022 10.0.20348.5761, Server 2025 10.0.26100.33650. KB number: see MSRC entry (not read).

## Timeline

- 2026-11-10T19:25:06+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119987
- 2026-11-10T22:10:12+00:00 analyst https://app.opencve.io/cve/CVE-2026-119987 — MSRC page is JS-only and unreadable here; affected builds/fixed builds taken from the Microsoft CNA record as mirrored by NVD/OpenCVE (not the vendor page), so nothing marked verified. Patch KB numbers not found. Not exploited per sources.

## Documents

- [describes] OpenCVE: CVE-2026-119987 (mirrors Microsoft CNA record) https://app.opencve.io/cve/CVE-2026-119987
- [describes] NVD: CVE-2026-119987 https://nvd.nist.gov/vuln/detail/cve-2026-119987

## From the sources

Untrusted search path in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.

---

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